SoundDetector - AutoConnect Window

The AutoConnect window controls the autoconnect process with the AirMail program.  To insure that this automatic connection process does not interfere with other people using the same frequency, the program always checks the a frequency for signal activity before attempting any connection.  Besides checking the intended frequency for signal activity the program can also check the station's other frequencies for signal activity. This prevents the program from attempting to connect to a station that is busy on another frequency.

Based on the Auto Select Options and the selected NTIA/ITS propagation model a list is generated of the best stations and frequencies to use.  This list is used in the auto connect process.

The auto connect process is started by clicking the run button .  The program automatically checks each station in the list.  For each station the program first checks to see if any of the Rx Check frequencies are busy.  If any of the frequencies are busy the program will move to the next station in the list.  After checking the Rx Check frequencies, the program checks the Tx Connect frequencies for signal activity.  If the frequency is busy the program moves to the next station in the list otherwise it attempts to connect.  After connecting the program will wait for the data transfer to complete and then stop.  If no connection is made, the program will try the next Tx Connect frequency for that station.  If the program does not connect with any of the Tx Connect frequencies for that station, it will proceed with the next station in the list.  This process will continue until a connection is made or the program has attempted the specified number of Attempts.

The ability to first check the stations Rx Check frequencies for signal activity is helpful and saves battery power, but it is not fool proof.  Just because a station's frequency is busy does not imply that the station is actually busy using that frequency.  The frequency might be busy with a different station.  As an example, the frequencies marked in the magenta color indicate the frequency is allocated to several base stations. Both KA6IQA and W7BO use 7101.2 KHz.  A Tx Only option is provided to skip the checking of Rx Check frequencies and only check the Tx Connect frequencies for signal activity.

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